 | William Nicholson - Natural history - 1809 - 700 pages
...grind the mixture for a considerable time, till the gold is reduced to extremely minute fragments ; when this is done, a little warm water will wash out the honey or gum, leaving the gold behind in a flaky pulverulent state. A less tedious and more effectual way of comminuting the gold, is to dissolve... | |
 | William Nicholson - Natural history - 1819 - 394 pages
...grind the mixture for a considerable time, till the gold is reduced to extremely minute fragments ; when this is done, a little warm water will wash out the honey or gum, leaving the gold behind in a flaky pulverulent state. A less tedious and more effectual way of comminuting the gold is, to dissolve... | |
 | Colin MacKenzie - 1821 - 724 pages
...are in this way gilded with great advantage, to Kcure them from rust. LXXXVII. PREPARATION OF GOLD POWDER, FOR GILDING. Gold powder may be prepared in...leaving the Gold behind in a pulverulent state. Another way, is to dissolve pure Gold, (or the leaf) in Nitro-muriatic acid ; and then to precipitate it by... | |
 | Colin Mackenzie - Chemistry - 1822 - 774 pages
...great advantage, to Kcure them from rust. LXXXVII. . .. PEEPAEATION OF GOLD POWDER, FOR fin, DIM,. Gold powder may be prepared in three different ways...leaving the Gold behind in a pulverulent state. Another way, is to dissolve pure Gold, (or the leaf) in Nitro-muriatic acid ; and then to precipitate it by... | |
 | John Nicholson - Machinery - 1825 - 838 pages
...Gold powder may be prepared in 3 different ways : — 1st, put into an earthen mortar some gold-leaf, with a little honey, or thick gum-water, and grind...gum, leaving the gold behind in a pulverulent state. 2nd. — Dissolve pure gold (or the leaf), in nitro-miiriatic acid* and then to precipitate it by a... | |
 | John Nicholson - Machinery - 1825 - 822 pages
...earthen mortar some gold-leaf, with a little honey, or thick gum-water, and grind the mixture tilt the gold is reduced to extremely minute particles....gum, leaving the gold behind in a pulverulent state. 2nd. — Dissolve pure gold (or the leaf), in nitro-muriatic acid, and then to precipitate it by a... | |
 | John Nicholson (civil engineer.) - Great Britain - 1825 - 1008 pages
...Gold powder may be prepared in 3 different ways : — 1st, pat into an earthen mortar some gold-leaf, with a little honey, or thick gum-water, and grind...is reduced to extremely minute particles. When this ii done, a little warm water will wash ont the honey or gam, leaving the gold behind in a pulverulent... | |
 | Daniel H. Whitney - Cholera - 1835 - 614 pages
...earthen mortar some gold leaf, with a little honey or thick gum water, and grind the mixture until the gold is reduced to extremely minute particles....honey or gum, leaving the gold behind in a pulverulent slate. 182. To cover bars of copper, i,-c. with gold, so as to be rolled out into sheets. Take pieces... | |
 | 1839
...Preparation of Gold Powder for Gilding. — Gold powder may bo prepared difl'creut ways — viz. put in an earthen mortar some gold leaf with a little honey...water will wash out the honey or gum, leaving the gold in a pulverulent btate. Another Method. — Dissolve pure gold (or the leaf) in nitro-muriatic acid,... | |
 | Science - 1842 - 496 pages
...powder may be prepared in three different ways : — 1st. Put into an earthen mortar some gold-leaf, with a little honey, or thick gum-water, and grind the mixture till the gold-leaf is reduced to extremely minute particles. When this is done a little warm water will wash... | |
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Put into an earthen mortar some Gold leaf, with a little honey, or thick gum-water ; and grind the mixture, till the Gold is reduced to extremely minute particles. When this is done, a little warm water will wash out the honey or gum, leaving the Gold... 
